"Mon, 09 Dec 2024 15:40:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
15:40:36
General datetime
2024-12-09 15:40:36Z
For Database
2024-12-09 15:40:36
For HTTP1.1
Mon, 09 Dec 2024 15:40:36 GMT